How do you know which size breastshields to order?
A very good question. There are no set rules as to which size breastshield will work for you. There is a certain element of trial and error involved. The majority of women are quite comfortable using the medium size breatshield but here are a few guidelines that may help.
When pumping, the nipple should be pulled down comfortably into the shield and you should feel as though the pumped breasts are empty when you are finished. If you have large nipples and they rub against the inside of the shield when you pump causing some discomfort (and maybe even incomplete emptying of the breast) it may be time to try a size larger breastshield. If pumping is actually painful to the nipple it may be time to go up a couple of sizes. On the other hand, if the nipple is not pulled down into the breastshield tube when pumping it might be an idea to try a smaller shield. The 36mm size XX Large breastshield has now been introduced. If you decide to try that size be especially aware of the amount of milk you are collecting when pumping. Using a breastshield on a regular basis that is too large can lead to decreased milk production. There are Two PersonalFit Breastshields per pack. Be sure to order the connectors that attach the breastshield to the pump, if you do not already own some. These breastshields will work with all Medela pumps except Disposable Kits and Little Hearts Manual Pump.
If you plan to use the Medela Hands Free Pumping Attachment Kit you will need to purchase the standard one piece breastshield (see below), as the PersonalFit Breastshields will not work with that attachment kit.
